diff --git a/include/pocketpy/memory.h b/include/pocketpy/memory.h
index 324da3b3..14327ae4 100644
--- a/include/pocketpy/memory.h
+++ b/include/pocketpy/memory.h
@@ -10,9 +10,6 @@ void pool64_dealloc(void*) noexcept;
 void* pool128_alloc(size_t) noexcept;
 void pool128_dealloc(void*) noexcept;
 
-void* pool256_alloc(size_t) noexcept;
-void pool256_dealloc(void*) noexcept;
-
 template<typename T>
 void* pool64_alloc() noexcept{
     return pool64_alloc(sizeof(T));
@@ -23,15 +20,9 @@ void* pool128_alloc() noexcept{
     return pool128_alloc(sizeof(T));
 }
 
-template<typename T>
-void* pool256_alloc() noexcept{
-    return pool256_alloc(sizeof(T));
-}
-
 void pools_shrink_to_fit() noexcept;
 
 std::string pool64_info() noexcept;
 std::string pool128_info() noexcept;
-std::string pool256_info() noexcept;
 
 };  // namespace pkpy
diff --git a/src/memory.cpp b/src/memory.cpp
index a30cc47d..695c83e5 100644
--- a/src/memory.cpp
+++ b/src/memory.cpp
@@ -269,7 +269,6 @@ struct MemoryPool{
 
 static MemoryPool<64> pool64;
 static MemoryPool<128> pool128;
-static MemoryPool<256> pool256;
 
 void* pool64_alloc(size_t size) noexcept { return pool64.alloc(size); }
 void pool64_dealloc(void* p) noexcept { pool64.dealloc(p); }
@@ -277,17 +276,12 @@ void pool64_dealloc(void* p) noexcept { pool64.dealloc(p); }
 void* pool128_alloc(size_t size) noexcept { return pool128.alloc(size); }
 void pool128_dealloc(void* p) noexcept { pool128.dealloc(p); }
 
-void* pool256_alloc(size_t size) noexcept { return pool256.alloc(size); }
-void pool256_dealloc(void* p) noexcept { pool256.dealloc(p); }
-
 void pools_shrink_to_fit() noexcept {
     pool64.shrink_to_fit();
     pool128.shrink_to_fit();
-    pool256.shrink_to_fit();
 }
 
 std::string pool64_info() noexcept { return pool64.info(); }
 std::string pool128_info() noexcept { return pool128.info(); }
-std::string pool256_info() noexcept { return pool256.info(); }
 
 }
\ No newline at end of file